I am torn between War Domain and Tempest Domain. If Larian stay close to PHB, then guided strike should basically ensure hitting an enemy with a thorn whip. Can be very handy if there is an opportunity to pull one from the high ground, falling damage is massive in BG3. As for the Tempest, it seems like Destructive Wrath should solve low intelligence problem and unlock some thunder spells like thunderwave/shatter. Wrath of the Storm also seems cool, a little similar to battle master's riposte or hellish rebuke.
